30A 80A Solid Wire Micro Current Transformer
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Product Highlights
- High Accuracy Class: Available in Class 0.1, 0.2, and 0.5 for precise monitoring applications.
- Wide Frequency Range: Operates effectively from 50 Hz to 400 Hz for diverse power systems.
- Robust Insulation: Features 2500 Vrms isolation voltage and epoxy encapsulation for safety.
- Durable Shell Material: Constructed with UL 94-V0 rated PBT resin for flame retardancy.
- Low Cost Design: Split core design ensures safer and easier installation for users.
- Comprehensive Certifications: RoHS compliant and CE approved with ISO9001:2015 quality management.
- Flexible Customization: Custom-made transformers, OEM, and ODM services are welcome.
- Long Service Life: Transformer quality guaranteed for 10 years with 1-year product warranty.
Product Attributes
- Customization
- Available
- Application
- Electronic, Instrument, Position Sensor, Audio, Lighting
- Type
- Current Transformer
- Model NO.
- GWCT016
- Phase
- Single
- Operation Condition
- Indoor
- Winding Form
- Multilayer Honeycomb Type
- Insulating Medium
- Insulating Gas
- Installation
- Strut Type
- Magnetic Circuit Structure
- Combined Type
- Voltage Transformation Principle
- Electromagnetic Type
- Type1
- Current Transformer
- Shell Material
- PBT or ABS
- Accuracy Class
- Class 0.1, 0.2
- Low Cost Split Core Design
- Safer Easier to Installation
- Coil Number
- 200:5
- Working Frequency Bound
- 50~400Hz
- Transport Package
- Export Standard Carton With Strong Pallet
- Specification
- CE, ROHS
- Trademark
- GW
- Origin
- Tianjin
- HS Code
- 85045000
- Production Capacity
- 50000PCS/Month
Shipping
- Shipping Cost:
- Contact the supplier about freight and estimated delivery time.
Online Trading Protection
- Payment Guarantee
-
Platform-protected payments with refund support for eligible order issues.
- Platform Logistics
- Clearer shipment tracking with platform-supported logistics.
- Inspection Service
- Optional pre-shipment inspection for quality and quantity checks.
- After-Sales & Dispute Handling
- Platform-assisted dispute resolution, including refunds or returns when applicable.
Only orders placed and paid through Made-in-China.com Secured Trading are eligible for payment protection and the corresponding platform services.
Product Images of 30A 80A Solid Wire Micro Current Transformer
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Product Description
Product Description
30A 80A Input Micro Current Transformer with Solid Wire Super CT
Our main product are miniature voltage transformer ,miniature current transformer ,instrument current transformer , clamp on ccurrent transformer
,split core current transformer ,three phase current transformer ,zero-flux current transformer
1.Product pictures


2.Features:
| Low cost |
| More than 50 standard sizes |
| Non-symmetrical mounting pattern |
| Toroidal Silicon steel and Nickel Alloy available |
3.Applications
| For applications that require exceptional accuracy with minimal phase angle error |
| Applications would include Voltage,power and energy monitoring devices |
4.Specifications
| Exterior Material | PBT Resin UL flame retardant rating 94-V0 |
| Interior Insulation | Epoxy Encapsulated |
| Isolation Voltage | 2500 Vrms for 1 minute |
| Dielectric Resistance | 1000 M Ohms @ 500 Vdc |
| Surge Withstand | 5000V(1.2/50μs standard shock wave)optional |
| Rated Load Resistance | 100K Ohms |
| Operating Temperature | -25 to +55ºC,-40 to +85ºCoptional |
| Frequency | 50 to 400 Hz |
| Accuracy Class | defined in IEC 60044-1 Part 1 Voltage Transformers Class 0.1 0.2 |
| Certification | RoHS Compliant CE Approved |
5.Typical Impedance Dependence of Phase and Amplitude Errors (Test temperature 25º C)
6.outline drawings
7.Performances
| Part Number |
Rated Input Current (A) |
Turn Ratio |
Frequency ( Hz ) |
Secondary Burden Resistance (Ohms) |
Accuracy Class |
Outline Dimensions (mm) |
| GWTA1111 | 5~30 | 1000:1 2000:1 2500:1 |
50 to 400 | ≤200 | 0.1 0.2 0.5 |
ID-L-W-H 7.0-22.0-18.0-23.0 |
| GWTA1311 | 5~80 | ≤800 | 0.1 0.2 0.5 |
ID-L-W-H 8.0-25.3-18.0-30.0 |
||
| GWTA1411 | 5~80 | ≤800 | 0.1 0.2 0.5 |
ID-L-W-H 9.0-31.5-20.5-33.5 |
||
| GWTA21A11 | 5~50 | 1000:1 2000:1 2500:1 3000:1 |
50 to 400 | ≤200 | 0.1 0.2 0.5 |
ID-L-W-H 6.9-25.0-11.6-26.5 |
| GWTA21B11 | 5~50 | ≤200 | 0.1 0.2 0.5 |
ID-L-W-H 6.7-23.5-11.5-25.0 |
||
| GWTA21CB11 | 5~15 | 1000:1 2000:1 |
50 to 400 | ≤50 | 0.2 0.5 |
ID-L-W-H 3.6-18.0-10.0-19.0 |
| GWTA21CE11 | ≤50 | ID-L-W-H 5.0-17.0-9.2-16.7 |
||||
| GWTA21CD11 | ≤50 | ID-L-W-H 5.0-18.0-10.0-19.0 |
||||
| GWTA21C11 | 1000:1 2000:1 2500:1 |
≤50 | ID-L-W-H 4.5-18.0-10.0-20.0 |
|||
| GWTA21CA11 | ≤300 | ID-L-W-H 4.5-19.0-12.5-19.0 |
||||
| GWTA21E11 | 5~20 | ≤200 | 0.1 0.2 0.5 |
ID-L-W-H 5-21-13.5-21.5 |
||
| GWTA21F11 | 5~30 | 1000:1 2000:1 2500:1 3000:1 |
≤200 | 0.2 0.5 |
ID-L-W-H 6.7-23.9-12-25 |
|
| GWTA22B11 | 5~80 | 1000:1 1500:1 2000:1 2500:1 3000:1 |
50 to 400 | ≤800 | 0.1 0.2 0.5 |
ID-L-W-H 8.7-26-17.5-27.5 |
| GWTA22D11 | 5~100 | ≤1000 | 0.1 0.2 0.5 |
ID-L-W-H 9.0-29.5-19.0-30 |
||
| GWTA22E11 | 5~100 | ≤1000 | 0.1 0.2 0.5 |
ID-L-W-H 12.8-36.7-14.2-38.5 |
||
| GWTA2311 | 5~20 | 1000:1 2000:1 2500:1 |
50 to 400 | ≤200 | 0.1 0.2 |
ID-L-W-H 5.0-18.8-17.8-19.5 |
| GWTA23B11 | 5~80 | 1000:1 2000:1 2500:1 3000:1 5000:1 |
≤100 | 0.1 0.2 0.5 |
ID-L-W-H 6.0-25.0-21.5-26.0 |
|
| GWTA23A11 | 5~100 | ≤1000 | 0.1 0.2 0.5 |
ID-L-W-H 6.0-34.0-22.0-36.0 |
||
| GWTA32B11 | 5~20 | 1000:1 2000:1 2500:1 |
50 to 400 | ≤100 | 0.1 0.2 |
ID-L-W-H 5-17.6-19.3-17.6 |
| GWTA3311 | 5~80 | 1000:1 1500:1 2000:1 2500:1 3000:1 |
≤500 | 0.1 0.2 0.5 |
ID-L-W-H 6.0-28.0-28.0-22.0 |
|
| GWTA34B11 | 5~100 | ≤1000 | 0.1 0.2 0.5 |
ID-L-W-H 5.5-34.0-34.0-23.0 |
8.outline dimensions
Company introduction
1.certification
We have passed ISO9001:2015,CE,SGS approval and IEC report

2.Company profile
Tianjin Grewin is concentrating on transformers for 20 Years and complianted by ISO9001:2015,CB,IEC CB,CE etc.We're always pay great attention to its business philosophy "Quality and Honesty First".Grewin is specialized in the design and manufacture of wound components such as transformer,current sensors, chokes etc .windely used in communications,electronics,meters,industrial control,medical equipments and other fields.We are also a provider of power meters and instruments locators. 85% of its products exported to America, Europe, and Asia etc.We sincerely invite you to join us to create a bright future.
3.Terms of Shipment:
(1)Products are shipped via UPS / DHL / EMS / HK EMS / FedEx / TNT and so on expresses (door to door).
(2)We Provide Drop shipping Service.
(3)20 days around delivery upon receiving payment if the qty is lower than 1000PCS and it is not customized products.
(4)In order to ensure you receive your order tax free upon
import, we declare lower value.
(5)Shipping via EMS. UPS. FedEx and TNT express usually takes 3~7days dependent on the destination country.
4.Payment terms:
(1)T/T 100% or 50% deposit by T/T in advance, balance amount to be paid 7 days before
delivery.
(2) By irrevocable L/C at sight, to be issued immediately against confirmed order.
(3)Payment by T/T, if order amount is less than USD 20,000.
5.Warranty:
(1)We provide 1 year warranty.
(2)If the product is defective, please notify us within 3 days of delivery.
(3)All products must be returned on their original condition, in order to qualify for a refund or exchange of goods
6.Production
The following picture showed you about all finished transformer production line and package with export standard carton and strong pallets:
7.Flow chart of trading activities:
NO |
Step |
Days need |
1 |
Request for quotation |
1 day |
2 |
Making quotations |
1 day |
3 |
Offer and counter offer |
3 days |
4 |
Sending and receiving samples |
3-10 days |
5 |
Sample confirmation |
3 days |
6 |
Placing a firm order |
1 day |
7 |
Paying and receiving the down payment |
1-4 day |
8 |
Factory production & Quality inspection |
15-20 days |
9 |
Paying and receiving the balance |
4 days |
10 |
Delivery of goods |
1 days |
8.Why choose us?
Quality and honest first!
A. Flexible service for diffierent transformers with high efficiency performance.
B. Over 40 years experience of transformer designing and producing.
C.100% test of every single product we produce from incoming material checking.
D. UL, CE, ISO9001:2008
E. We offer custom-made transformers, OEM and ODM are welcome
F. We deliver the quality you expect at consistently competitive prices
G.Transformer quality lifetime:10 Years.
H.Specialty Sales service:5 -10 Years
9.contact
Tianjin Grewin Technology Co.,Ltd.
Address: 2# MeiNian Plaza No.16 DongTing Road,Hexi Distr,300222,Tianjin China.
About the Supplier
This supplier has been audited by BV. Verify the report on the official BV website with ID "MIC-ASR246099". Items marked "" are certified.
Company Profile
Tianjin Grewin Group is concentrating on transformers for 25 Years and complianted by ISO9001: 2015, CB, IEC CB, CE etc. We're always pay great attention to its business philosophy "Quality and Honesty First". Grewin is specialized in the design and manufacture of wound components such as transformer, current sensors, chokes etc. Windely used in communications, electronics, meters, industrial control, medical equipments and other fields. We are also a provider of power meters and tape and winding machines. 85% of its products exported to America, Europe, and Asia etc. We sincerely invite you to join us to create a bright future.
Tianjin Grewin Technology Co. Ltd. In Tianjin City which is very close to XinGang Port and BinHai International Airport, which provide timely and convenient access to transportations for customers. It's a professional leading and a main exporter of a wide variety of electronics components in north of China.
All of our products stand for top quality in this industry and are enjoying very high honor. We have abtained ISO9001, CE, SGS approval and IEC test report.
Our core business are including following:
1. Toroidal Transformers
2. Current Transformers
3. EI laminated Transformers
4. Ferrite Core Transformers
5. Coil WIinding Machines
6. Taping Machines
7. Cable Fault Locators
8. Pipe locator
All staff in our company would like to appreciate for your attention to our products. Welcome to give us your valuable suggestions about products and services. You can be our sole agent in your country and benefit from more preferable prices. OEM orders are welcome.
About Our Factory & Business Background
- Address
- 2# MeiNian Plaza No.16 DongTing Road,Hexi Distr,300222,Tianjin China
- Terms of Payment
- LC, T/T, D/P, PayPal, Western Union, Small-amount payment, Money Gram
- International Commercial Terms(Incoterms)
- EXW, CFR, CIF, FAS, DDP, DAP, CIP, CPT, Others, FCA
- Average Lead Time
-
Peak Season Lead Time: within 15 workdays
Off Season Lead Time: within 15 workdays - Nearest Port
- TIANJIN XINGANG SEA PORT, SHANGHAI SEA PORT, QINGHUANGDAO SEA PORT
Our Production Capability & Technical Expertise
Our Industry Experience & Global Business Record
- Export Year
- 2006-08-09
- Main Markets
- North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe
FAQ
- What is the accuracy class of this transformer?
- The accuracy class is available in Class 0.1, 0.2, and 0.5, defined in IEC 60044-1 Part 1.
- What is the operating frequency range?
- The transformer operates within a frequency range of 50 to 400 Hz.
- What materials are used for the shell?
- The exterior material is PBT Resin with a UL flame retardant rating of 94-V0.
- Do you offer customization services?
- Yes, we offer custom-made transformers, and OEM and ODM services are welcome.
- What is the warranty period?
- We provide a 1-year warranty. Defective products must be notified within 3 days of delivery.
- How long does delivery take?
- Delivery takes 20 days for orders under 1000 PCS that are not customized. Express shipping takes 3-7 days.
- What are the payment terms?
- Payment can be made via T/T (100% or 50% deposit), irrevocable L/C at sight, or T/T for orders under USD 20,000.
- What is the isolation voltage?
- The isolation voltage is 2500 Vrms for 1 minute.
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Product Groups
- Wire Welding Machine
- Tororidal transformer winding machine
- Parallel Winding Machine
- Fully Automatic Hook Winding Machine
- Coil Winding Machine
- Cable Fault locators Testers
- current transformer
- Toroidal Transformer Test Equipment
- toroidal transformer
- Ferrite magnetic frequency transformer
- sator winding machine
- Automatic Copper Wire Stripping Machine
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